This document proposes a universal adaptive headlight system to improve safety. It begins with an introduction describing the need for such a system due to the high number of nighttime accidents. It then describes the limitations of conventional static headlights and proposes using sensors and lights that can adapt in real-time based on steering angle to improve visibility around corners. The proposed system architecture and working involve using a rotary potentiometer sensor and logic circuit to control LED lights. Advantages include improved safety and visibility, while disadvantages include needing continuous power and potential issues with vibration. The conclusion is that this simple, low-cost system could increase safety for drivers.

1. UNIVERSALADAPTIVE
HEADLIGHT SYSTEM
Prepared By :
Syam S
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2. CONTENT
 INTRODUCTION
 CONVENTIONAL HEADLIGHT
 NEED FOR ADAPTIVE LIGHTENING SYSTEM
 DEVELOPED SYSTEM ARCHITECTURE
 WORKING
 HARDWARE IMPLEMENTATION
 FUTURE DEVELOPMENT
 ADVANTAGE
 DISADVANTAGE
 CONCLUSION
 REFERENCES
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3. INTRODUCTION
 Now a days the use of vehicles are the part of life
 Vehicle reduces the distance and saves time of busy human
life, still it has great drawback that is inevitable
 Road mishaps occurs due to carelessness, condition of roads,
technological fault etc.
 In 2014 around 4.8 lakh road accident occurred in which
4.5lakh people get injured and 1.4 lakh people die every year
due to road accident in India
 Compared to day time risk of accident is three times at night
time
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4. CONVENTIONAL HEADLIGHT
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5. NEED OF ADAPTIVE LIGHTENING
SYSTEM
• Conventional front
lightning system is
static
• low beam or high
beam
• Illumination at
corner is not
possible while
taking a curve
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6. NEED OF ADAPTIVE LIGHTENING
SYSTEM(Cont…)
• AFS control headlight
during vehicle’s turning
from driver’s point of view
• AFS consist of real time
sensor mounted on steering
shaft
• Improves visibility
• With better illumination,
stress and fatigue of driver
reduces
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7. DEVELOPED SYSTEM ARCHITECTURE
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8. WORKING
• Output from rotary potentiometer
and multi turn preset is supplied
to logic IC
• Multi turn preset is used to set
benchmark
• Logic IC used as comparator and
works only if incoming value is
more than or equal to benchmark
value
• Signal from logic IC is amplified
using transistor
• Output from transistor is fed to a
12V DC relay through diodes
• Output from relay to LED
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9. WORKING(Cont…)
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10. HARDWARE IMPLEMENTATION
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11. FUTURE DEVELOPMENT
• Common rubber based
platform for holding LED
can be developed
• Microcontroller chip can be
used to compact the design
• Dedicated steering angle
sensor can used instead of
potentiometer
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12. ADVANTAGES
 Cost effective solution for the problem of accidents occurring
night time
 It can be easily mounted on cars
 Enhances existing functionality of the headlight system
 Increases visibility of the driver at curves
 Increased safety for drivers and pedestrians
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13. DISADVANTAGES
 Continuous power supply for sensor circuit
 Dislocation of LED may happen due to vibration
 Use of potentiometer as angle sensor is not reliable due to its
error causing tendency with time
 Present prototype is needs to be modified to make it
compatible with all power steering based vehicles
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14. CONCLUSION
 AFS serves as a reliable and efficient system for efficient
driving at sharp turn
 System is inexpensive, simple and dependable assembly
 Simple comparator based circuit is used ,which uses very
simple logic and makes it most economical to use
 AFS ensures degree of safety in vehicle and assistance to
driver
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15. REFERENCES
[1] Gunnar D. Jensen, Cato A. Bjørkli a , Kristina Sakshaug, Terje
Moen, “Behavioral Adaptation to Adaptive Front Lighting Systems
(AFS): A Six Day Driving Simulator Study”, Conference on SINTEF
Transport Safety and Informatics
[2] Christian Jebas, Karsten Klinger, Uli Lemmer, “New headlamp
technologies”, Proc. of SPIE Vol. 7003 70032A-1
[3] Meftah Hrairi and Anwar B. Abu Bakar, ” Development of an
Adaptive Headlamp Systems”, International Conference on Computer
and Communication Engineering (ICCCE 2010), Kuala Lumpur,
Malaysia,11-13 May 2010
[4] Risto Kulmala,“Observations on the use of the accident causation
approach in assessing the safety effects of systems”, VTT Technical
Research Centre of Finland
[5] Mahendra Dassanayake, Robert Miller, Sleiman Abdelnour, , “Adaptive Front
Lighting System for Vehicle”, US patent No. US638B2, 2 June, 2009 15

16. THANK YOU
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